Please write what file have you modified (.js) and leave the modification so I can see whats wrong. Also, please post exact url to site where the iframe with border is.
I had solved it deleting the line that was shown in that post, for the iframes i had solved it usin a iframe extension, everything is fine now thank you!
Ok. With iframes there should be a pure css way to remove frames without using extensions, but if everything seems to work fine, there is no point to change anything.